I've only watched 2 episodes so far, but it's captured the feel of th muppets fantastically. Janice has been terrible under Disney, but this is the closest they've gotten her. All of the personalities are good.
Disney has had an issue with the human characters in most of what they've done. The muppets was a great start but was a bit too the Jason Segal show. What they haven't figured out is how to keep the muppets the focus and the humans the secondary focus. That said, so far I don't mind the human characters.
Yea the special effects are strange. The funny part is why did you even need special effects for most of it. They used cg for them spilling paint. Here's a thought, just spill a couple cans of paint. Lol